Automatic Electric Advertising Sign (open access)

Automatic Electric Advertising Sign

Patent for an electronic sign that works by a conveyor-belt like band printed with advertisements being rotated, allowing the owner to show many advertisements while saving space.
Date: July 1, 1919
Creator: Craig, Richard M.
System: The Portal to Texas History
Boll-Cotton Separator and Cleaner (open access)

Boll-Cotton Separator and Cleaner

Patent for a new boll-cotton separator and cleaner used for separating and cleaning boll, catch the cotton delivered to the separating chamber, remove cotton from catching means, etc.
Date: July 15, 1919
Creator: Simmons, Oliver G.
System: The Portal to Texas History
Laminated Fabric for Tire-Casings. (open access)

Laminated Fabric for Tire-Casings.

Patent for a laminated fabric for tire casings that reinforces motor vehicle tires to reduce heat exposure and risk of damage. This type of laminated fabric is intended to resist wear and prevent tire blow-outs.
Date: July 29, 1919
Creator: Doolin, Charles B.
System: The Portal to Texas History
Underground Portable Drill (open access)

Underground Portable Drill

Patent for drilling machines for the object of drilling underground openings for laying gas, electric, water or any other conduits. A second object is sectional drill or track worm to keep drilling going without moving the machine.
Date: July 15, 1919
Creator: Branning, Willie F.
System: The Portal to Texas History